Some signaling protocols support redirecting calls from one location to another. This is usually done by a redirect server which analyzes incoming call information and then terminates the call while specifying another destination.Redirections are usually triggered by the following call termination reason codes:

300 Multiple Choices

301 Moved Permanently

302 Moved Temporarily

305 Use Proxy

380 Alternative Service

FreeSBC provides support for various redirection behaviors on signaling protocols that support it. Please check followink link for configuration of Redirect on FreeSBC; https://docs.telcobridges.com/tbwiki/Use_Cases:SIP_Redirect_to_SIP

Is this redirect feature still working on 3.1.27? In our test, FreeSBC relays 302 back to the source device. We have double checked SIP->Header Parameters->Use legacy redirection mode(disabled) and Profiles->Reason Cause Mapping->302->Route retry action(Process call routing).